Knowledge and Management of Aquatic Ecosystems最新文献_第9页

A small omnivore fish (Acheilognathus macropterus) reduces both growth and biomass of submerged macrophytes: implications for shallow lake restoration 一种小型杂食性鱼会降低水下大型植物的生长和生物量:对浅湖恢复的影响

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020028

Jinlei Yu, Manli Xia, Wei Zhen, Hu He, Ruijie Shen, B. Guan, Zhengwen Liu

{"title":"A small omnivore fish (Acheilognathus macropterus) reduces both growth and biomass of submerged macrophytes: implications for shallow lake restoration","authors":"Jinlei Yu, Manli Xia, Wei Zhen, Hu He, Ruijie Shen, B. Guan, Zhengwen Liu","doi":"10.1051/kmae/2020028","DOIUrl":"https://doi.org/10.1051/kmae/2020028","url":null,"abstract":"Transplantation of submerged macrophytes has been widely used to improve water quality in restoring shallow lakes in China. However, in some lakes, small omnivorous fish predominated the fish assemblages and fed mainly on submerged macrophytes. Despite significant research examining grazing selectivity in herbivorous fishes, macrophyte feeding preferences of small omnivorous fishes are poorly understood. We conducted a mesocosm experiment to examine the effects of a prolific small omnivorous bitterling fish Acheilognathus macropterus on the relative growth rate (RGR) and biomass of submerged macrophytes (Ceratophyllum demersum, Myriophyllum spicatum, Vallisneria denseserrulata, and Hydrilla verticillata). Our results showed that the presence of A. macropterus significantly increased nutrient concentrations (e.g. total nitrogen and total phosphorus). The RGR of C. demersum in the bitterling-present treatment was significantly lower than the controls, in the presence of other macrophyte species. Further, total biomass of the four species of macrophytes in the fish-present mesocosms was markedly lower than in the fish-absent treatment, suggesting considerable consumption of macrophytes by bitterling. Moreover, the percent biomass of V. denserrulata and H. verticillata were significantly enhanced by the presence of bitterling. Our findings suggest that A. macropterus may increase nutrient concentrations through excretion and reduce the biomass and RGR of certain submerged macrophytes which may shift macrophyte community structure via selective grazing.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"18 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88450148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Brown trout in Japan − introduction history, distribution and genetic structure 日本褐鳟的引进历史、分布和遗传结构

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020004

P. Berrebi, S. Marić, A. Snoj, K. Hasegawa

引用次数: 3

Creating life-long anglers: impacts of a high school fishing program on youth fishing, related knowledge, confidence and perception of barriers 培养终身垂钓者:高中钓鱼课程对青少年钓鱼、相关知识、信心和对障碍的认知的影响

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2019045

Nia A. Morales, R. Paudyal, Conor Hughes

引用次数: 2

Impact of anthropogenic transformations on the vegetation of selected abiotic types of rivers in two ecoregions (Southern Poland) 波兰南部两个生态区河流非生物类型植被的人为变化影响

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020026

Dariusz Halabowski, I. Lewin

{"title":"Impact of anthropogenic transformations on the vegetation of selected abiotic types of rivers in two ecoregions (Southern Poland)","authors":"Dariusz Halabowski, I. Lewin","doi":"10.1051/kmae/2020026","DOIUrl":"https://doi.org/10.1051/kmae/2020026","url":null,"abstract":"The quality of water in rivers is declining worldwide due to anthropogenic activities. This phenomenon may be exacerbated by climate change and population growth. We hypothesised that both physical and chemical parameters of water, which reflect the differences in the underlying geology and anthropogenic transformations, are the most important characteristics to explain the distribution of macrophytes in rivers. In the present study, we analysed the effect of anthropogenic transformation on the structure of macrophytes in eight rivers within the river basins of the Vistula and Oder Rivers (Southern Poland). A canonical correspondence analysis showed that conductivity, altitude, natural features of rivers and adjacent land use, which are indicated by the values of the Hydromorphological Diversity Index (WRH), and medium sand were the most important factors that affected the distribution of macrophytes. The eurytopic species, including invasive alien species, were negatively correlated with the WRH index and positively correlated with high conductivity. An increase in the conductivity led to a loss of vegetation diversity and caused the replacement of freshwater species with brackish or salt-resistant species. Salinity of 2.96–5.16 PSU decreased the number of macrophyte taxa by over 30% in the rivers as compared to salinity of 0.45–0.64 PSU. Because very few studies have investigated the effect of salinity on macrophytes, further research is needed to explain this phenomenon. We therefore suggest extensive use of hydromorphological indices in studies on the distribution of macrophytes in rivers.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"1 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89971094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Conservation paradox of giant arapaima Arapaima gigas (Schinz, 1822) (Pisces: Arapaimidae): endangered in its native range in Brazil and invasive in Indonesia 巨骨舌鱼的保护悖论(Schinz, 1822)(双鱼座:巨骨舌鱼科):巴西本土濒临灭绝，印度尼西亚入侵

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020039

J. Marková, Rikho Jerikho, Y. Wardiatno, M. Kamal, A. Magalhães, Lucie Bohatá, L. Kalous, J. Patoka

引用次数: 17

Invasion and distribution of the redclaw crayfish, Cherax quadricarinatus, in Martinique 马提尼克岛红爪小龙虾的入侵与分布

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/KMAE/2020041

T. Baudry, Thomas Becking, J. Gout, Alexandre Arqué, H. Gan, C. Austin, C. Delaunay, J. Smith-ravin, Jonathan A. C. Roques, F. Grandjean

{"title":"Invasion and distribution of the redclaw crayfish, Cherax quadricarinatus, in Martinique","authors":"T. Baudry, Thomas Becking, J. Gout, Alexandre Arqué, H. Gan, C. Austin, C. Delaunay, J. Smith-ravin, Jonathan A. C. Roques, F. Grandjean","doi":"10.1051/KMAE/2020041","DOIUrl":"https://doi.org/10.1051/KMAE/2020041","url":null,"abstract":"The redclaw crayfish, Cherax quadricarinatus, was introduced to Martinique Island for aquaculture purposes in 2004, in an attempt to revitalize the freshwater crustacean aquaculture sector. In 2015, three wild populations were discovered during an electrofishing survey on fish diversity. In 2018, a specific crayfish survey was performed at night using spotlighting and baited traps at 34 sites throughout the island. The species was mostly found in the center and northern part of the island, specifically, a total of 105 specimens were captured in eight streams and five closed water bodies. We sequenced a 491 base-pair fragment of the COI gene to understand the invasion history and pathway from the presumed source population at the Mangatal hatchery. Among the eight haplotypes found, three were dominant, of which, two occurred in the Mangatal hatchery. As crayfish are sold alive, there is a high risk of further human-mediated introductions across the island hydrographic basins. Thus, the distribution of this species could rapidly expand throughout Martinique freshwater ecosystems, with ecological impacts on native communities yet to be determined and requiring urgent investigation.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"21 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88463942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Comparison of invertebrate diversity in lake waters and their resting eggs in sediments, as revealed by high-throughput sequencing (HTS) 基于高通量测序(high-throughput sequencing, HTS)的湖泊水体和沉积物中无脊椎动物卵的多样性比较

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020011

Xiaoyang Wang, Qing Wang, Yufeng Yang, Wenbo Yu

{"title":"Comparison of invertebrate diversity in lake waters and their resting eggs in sediments, as revealed by high-throughput sequencing (HTS)","authors":"Xiaoyang Wang, Qing Wang, Yufeng Yang, Wenbo Yu","doi":"10.1051/kmae/2020011","DOIUrl":"https://doi.org/10.1051/kmae/2020011","url":null,"abstract":"Aquatic invertebrate diversity reflects water quality and the health of aquatic ecosystems and should be monitored as an essential feature of freshwater ecosystems. The resting eggs of aquatic invertebrates in sediments populate the overlying water. The diversity of invertebrates in waters and their resting eggs in sediments in Baiyangdian Lake, Xiongan, North China, were assessed using high-throughput sequencing (HTS) with a pair of 18S rRNA gene adaptor-linked primers. The total of 99 operational taxonomic units (OTUs) derived from 353,755 invertebrate sequences (mostly zooplankton) were revealed by this study. A total of 50 species in the water samples including 20 rotifers, 11 copepods, 1 cladoceran and 18 other species were sorted out. In the sediment 37 species, including 21 rotifers, 3 copepods, 1 cladoceran and 12 other species, were identified. There were 24 species in common between water and corresponding sediments. Invertebrate OTU richness in water samples was higher than that in sediments (p < 0.01), while there was no significant difference in the Shannon-Wiener index. These results suggest that HTS is a promising alternative for efficient biodiversity assessment and monitoring.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"49 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88533861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Development of a fish-based index for the assessment of the ecological status of Lake Balaton in the absence of present day reference condition 在缺乏现有参考条件的情况下，巴拉顿湖生态状况的鱼类评价指标的建立

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020002

A. Specziár, T. Erős

{"title":"Development of a fish-based index for the assessment of the ecological status of Lake Balaton in the absence of present day reference condition","authors":"A. Specziár, T. Erős","doi":"10.1051/kmae/2020002","DOIUrl":"https://doi.org/10.1051/kmae/2020002","url":null,"abstract":"A fish-based index is proposed to indicate the ecological status of Lake Balaton, Hungary in accordance with the standard of the European Water Framework Directive (WFD). The Balaton fish index (BFI) synthetises information of 13 lake-specific fish metrics including gillnetting and electric fishing data of species richness of native assemblages, relative abundance, biomass and age structure of native key species, representation of non-native species and general health status. The main anthropogenic pressures considered were the degradation of littoral habitats, invasion of non-native fish species, eutrophication and fishing/angling including stocking. Ecological quality ratio (EQR) is assessed by relating actual fish assemblage metrics to the supposed undisturbed reference status of Lake Balaton reconstructed by expert judgement based on recent and historic information on the fish fauna and its changes. Values of BFI were consistent and indicated good ecological status of Lake Balaton in the period of 2005–2018. This study provides an example on how an EQR assessment methodology might be established in unique habitats with no possibilities for statistical evaluation of pressure-respond relationships and exact determination of the reference status.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"8 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87660719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Genetic diversity of endangeredChondrostoma nasusin the River Rhine system: Conservation genetics considerations on stocking and reintroduction 濒危莱茵河系统鼻软骨瘤的遗传多样性:放养和放养的保护遗传学考虑

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020016

Maj Wetjen, D. Hübner, O. Seehausen, R. Schulz

{"title":"Genetic diversity of endangeredChondrostoma nasusin the River Rhine system: Conservation genetics considerations on stocking and reintroduction","authors":"Maj Wetjen, D. Hübner, O. Seehausen, R. Schulz","doi":"10.1051/kmae/2020016","DOIUrl":"https://doi.org/10.1051/kmae/2020016","url":null,"abstract":"Reintroduction, stocking and translocation of freshwater fish are of growing concern given their importance for biodiversity conservation and ecosystem functioning. For successful management and stocking programmes, it is essential to incorporate genetics-based approaches. The nase (Chondrostoma nasus) constituted one of the most common fish species in European rivers. Its highly specialised and migratory nature exposed the species to human pressures, and thus, promoted its decline. Current knowledge of the genetic structure ofC. nasusis considerably limited for Europe as a whole and for Germany specifically. To overcome this lack of information we present original data onC. nasusfrom different tributaries of the River Rhine. We analysed nine microsatellite markers and mtDNA Cytochromebsequences to assess the distribution of genetic diversity and structure of this species across the study area. With the exception of the Lake Constance/Alpine Rhine population,C. nasusexhibited high gene flow within the Rhine system, and therefore, limited geographical genetic differences between populations where migration is not prevented by human intervention. The present study provides new insights into the levels of genetic variability ofC. nasusin the Rhine system, providing useful information for guiding reintroduction and stocking programmes. Population genetic information will improve future preservation and management of this valuable freshwater fish species in Germany and beyond.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"250 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73063933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Ecological particularities of the critically endangered killifish Valencia letourneuxi and its spring-fed habitats: a long-lost endemic species of south Albania 极度濒危的巴伦西亚·莱图纽西鳉鱼的生态特性及其泉水喂养的栖息地:阿尔巴尼亚南部一种消失已久的特有物种

IF 1.8 3区环境科学与生态学

Knowledge and Management of Aquatic Ecosystems Pub Date : 2020-01-01 DOI: 10.1051/kmae/2020036

S. Shumka, E. Kalogianni, R. Šanda, J. Vukić, Laura Shumka, B. Zimmerman

{"title":"Ecological particularities of the critically endangered killifish Valencia letourneuxi and its spring-fed habitats: a long-lost endemic species of south Albania","authors":"S. Shumka, E. Kalogianni, R. Šanda, J. Vukić, Laura Shumka, B. Zimmerman","doi":"10.1051/kmae/2020036","DOIUrl":"https://doi.org/10.1051/kmae/2020036","url":null,"abstract":"The southernmost part of Albania, the Butrinti Lake area is characterised by a highly diverse freshwater fish community with a high degree of regional endemism. This study focuses on the Corfu killifish (or toothcarp) Valencia letourneuxi (Sauvage, 1880) that is endemic to the western part of the Ionian Ecoregion, and reported in Albania in the past from a single location, Lake Butrinti. Recently, in June 2019, the species has been rediscovered at a very low population density (only 11 individuals collected) in a spring-fed stream in the vicinity of Lake Butrinti. Other fish present together with V. letourneuxi were the native Telestes pleurobipunctatus, Barbus peloponnesius, Anguilla anguilla and Pelasgus thesproticus and the translocated Alburnus sp. Our findings provide useful insights into the ecology and conservation of a Critically Endangered, range-restricted species and its habitats. The Corfu killifish presence correlated negatively with water depth and positively with aquatic vegetation coverage. The conservation implications of our findings both for the target species and the co-occurring fish fauna in its spring-fed habitats are discussed.","PeriodicalId":54748,"journal":{"name":"Knowledge and Management of Aquatic Ecosystems","volume":"34 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77308437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1